Daikyo Seiko, Ltd., headquartered in Tokyo, Japan, specializes in the development and manufacturing of medical device packaging solutions. The company focuses on a range of core technologies, including syringe barrels, plastic caps, and various medical containers designed for safe drug transfer and storage. Their expertise extends to sealing devices, vial caps, sterilization trays, and injector piston nests, ensuring high standards of quality and safety in the medical packaging sector. Daikyo Seiko is committed to advancing healthcare through innovative packaging solutions.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

126 Patents

#482 in Tokyo

#980 in Japan

#6,364 in the World

Tokyo, Japan

Daikyo Seiko, Ltd.

Forward Citations = 2,764

41 inventors:

Hideaki Kawamura (57 out of 170 patents)

Morihiro Sudo (25 out of 32 patents)

Masamichi Sudo (20 out of 21 patents)

4. Hiroshi Togashi (16 out of 16 patents)

5. Takayuki Yoshida (13 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Daikyo Seiko, Ltd.. Retrieved from https://idiyas.com/company/daikyo-seiko

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

7 patents (CIPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

34 patents (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]